Microsemi Corporation
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1N4747AUR
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1N4747AUR

Product Overview

Category

The 1N4747AUR is a Zener diode, which falls under the category of semiconductor devices.

Use

It is commonly used for voltage regulation and voltage reference applications.

Characteristics

  • Zener voltage: 20V
  • Power dissipation: 1.0W
  • Package type: DO-41
  • Operating temperature range: -65°C to +200°C
  • Storage temperature range: -65°C to +200°C

Packaging/Quantity

The 1N4747AUR is typically available in tape and reel packaging with quantities varying based on manufacturer specifications.

Specifications

  • Zener voltage: 20V
  • Power dissipation: 1.0W
  • Maximum forward voltage: 1.2V
  • Reverse current: 5μA
  • Temperature coefficient: 0.05%/°C

Detailed Pin Configuration

The 1N4747AUR has two pins, anode and cathode, and is typically housed in a DO-41 package.

Functional Features

The 1N4747AUR provides a stable reference voltage when operated in its reverse breakdown region, making it suitable for voltage regulation and reference applications.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The 1N4747AUR operates based on the Zener effect, where it maintains a constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

The 1N4747AUR finds applications in various fields including: - Voltage regulators - Voltage references - Power supplies - Signal conditioning circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N4747AUR include: - 1N4739A - 1N4746A - BZX55C20

In conclusion, the 1N4747AUR Zener diode is a versatile component widely used for voltage regulation and reference applications due to its precise voltage characteristics and compact form factor. While it offers advantages such as stable voltage regulation and wide operating temperature range, it also has limitations in terms of power dissipation and sensitivity to temperature variations. Understanding its specifications, pin configuration, functional features, and application field plans can aid in effectively utilizing this component within electronic circuits. Additionally, being aware of alternative models can provide flexibility in design and procurement processes.

기술 솔루션에 1N4747AUR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is the 1N4747AUR?

    • The 1N4747AUR is a Zener diode with a voltage rating of 20V and a power rating of 1W.

  2. What are the typical applications of the 1N4747AUR?

    • It is commonly used in voltage regulation, voltage reference, and overvoltage protection circuits.

  3. What is the maximum current that can flow through the 1N4747AUR?

    • The maximum current for reliable operation is typically around 50-100 mA.

  4. How does the 1N4747AUR provide voltage regulation?

    • The Zener diode conducts in the reverse-biased direction when the voltage across it reaches its breakdown voltage, effectively regulating the voltage.

  5. Can the 1N4747AUR be used for overvoltage protection?

    • Yes, it can be used to shunt excess voltage away from sensitive components in a circuit.

  6. What are the temperature considerations for the 1N4747AUR?

    • The operating and storage temperature range is typically between -65°C to +200°C.

  7. Is the 1N4747AUR polarity-sensitive?

    • Yes, it is important to observe the correct polarity when incorporating it into a circuit.

  8. What are the key differences between the 1N4747AUR and similar Zener diodes?

    • The main differences lie in their breakdown voltage and power dissipation capabilities.

  9. Can the 1N4747AUR be used in automotive applications?

    • Yes, it can be utilized in automotive electronics for voltage regulation and protection.

  10. Are there any specific layout or mounting considerations for the 1N4747AUR?

    • It is advisable to minimize lead length and keep the device close to the circuit board to reduce parasitic inductance and ensure stable operation.